This chapter provides solutions to some of the most common problems when trying to use hardware acceleration with the AutoCAD.
- After starting Windows Netmeeting, hardware acceleration in AutoCAD disabled or unavailable. Is it possible to re-enable hardware acceleration?
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To re-enable hardware acceleration, turn off Remote Desktop Sharing or close Netmeeting. Then restart AutoCAD and hardware acceleration should be available.
- After running a remote access application such as Remote Desktop, VMware, or Citrix hardware acceleration in AutoCAD is unavailable. Is it possible to use hardware acceleration with these applications?
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To use hardware acceleration, AutoCAD needs to be run locally from the computer. Hardware acceleration remains unavailable while any remote access application is running on the computer.
- Why is hardware acceleration unavailable?
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The most common reason why hardware acceleration is unavailable is that a graphics display driver cannot be located on the system. To use hardware acceleration, visit the video card manufacturer's website or the AutoCAD Certification website (http://www.autodesk.com/autocad-graphicscard) to download and install the latest driver available for your system.
- Why does hardware acceleration seem to disable on its own at times?
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There are some situations when AutoCAD drops out of hardware acceleration. The following is a list of the known conditions when an error or driver failure commonly occur:
- You lock and unlock the workstation while AutoCAD is currently running.
- Screen saver was activated and AutoCAD is restored.
- You enable/disable the second monitor on the system.
- System returns from hibernation/standby.
- AutoCAD runs out of video memory.
- Why is the Direct3D driver unavailable to use with hardware acceleration?
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To use the Direct3D driver for hardware acceleration, DirectX 9.0 must be installed on the system. To install DirectX 9.0c, insert the product’s original installation media (DVD/CD) in your drive. Execute DXSETUP.exe from the Support\DirectX folder and follow the displayed prompts.
- At times when I am using hardware acceleration, I encounter an error that prevents hardware acceleration from operating correctly and then it becomes unavailable. What should I do?
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To help ensure that hardware acceleration operates correctly, verify that you are running the latest service pack of the product and video graphics card driver before attempting to re-enable hardware acceleration.